Simulation Modeling for Analysis of a (Q, r) Inventory System under Supply Disruption and Customer Differentiation with Partial Backordering. (6th June 2012)

• Record Type: Journal Article
• Authors: Azimi, Parham; Ghanbari, Mohammad Reza; Mohammadi, Hasan
• Other Names: Mohamed Azah Academic Editor.
• Is Part Of: Modelling and simulation in engineering. Volume 2012(2012)
• Publication Date: 2012-06-06
• Subjects: Engineering -- Simulation methods -- Periodicals; Engineering -- Mathematical models -- Periodicals; 620.004
• DOI: 10.1155/2012/103258
• Languages: English
• ISSNs: 1687-5591

Abstract

Abstract : We have modeled a new ( Q, r ) inventory system which involves a single product, a supplier, and a retailer with customer differentiation under continuous review inventory policy. The supplier provides the retailer with all requirements, and the retailer sells products to the customers. The supplying process is randomly subject to disruptions. Partial backordering is applied when a stock out occurs, and customer can select either to leave the system without purchasing or to backorder products. The customers are categorized into two main classes regarding to their backordering probabilities. The main contribution of this paper is including the customer differentiation in the inventory model. We used simulation technique to verify the impact of supply disruptions and customer differentiation and carried out sensitivity analysis. To test the performance of the model, we have compared our model to one from the latest related research. As the results show, the average of total annual cost of the ( Q, r ) inventory system is lower than that of the previously developed models such as ( r, T ) inventory systems.